WMS™-15
Glass-ceramic substrates enable the production of cutting edge DWDM thin-film filters.
Ohara’s WMS™-15 glass-ceramic substrates will enable manufacturers to produce leading edge DWDM and thin-film filters. Our WMS™ substrates will facilitate the production of filters with extremely low thermal wavelength drift and low insertion loss values. WMS™-15 has improved internal transmittance and exceptionally low surface roughness values.
Properties of WMS™-15
| Properties | WMS-15 |
| Specific Gravity | 2.50 |
| Young’s Modulus (GPa) | Vickers Hardness |
| Thermal Conductivity (W/mK) | 1.9 |
| Heat Resistance (ºC) | 650 |
| CTE (x10-7/K) -30~+70 ºC | 114* |
| Water Resistance RW(p) | 1 |
| ATotal Alkali Content (Wt %) | 10.9 |
| Chemical Durability | Excellent |
| Int. Transmittance (%) 1550nm 1mm thick | 99.9 |
| Refractive Index 1550nm (calculated) | 1.524 |
- CTE=114 x10-7/K(-30~70°C): Standard material, Please consult us with higher CTE requirements.
- All properties are measured at room temperature except for CTE and dn/dt.
- Refractive Index and dn/dt is calculated value.
- Properties subject to change along development.
Available Products: Polished Substrate ( 1- 12inch )
Edge Chipping Photo Pictures
The WMS-15 glass ceramic substrates are less prone to edge chipping than amorphous glass substrates.
